23497399513 has 16 divisors (see below), whose sum is σ = 26995978240. Its totient is φ = 20034378000.

The previous prime is 23497399511. The next prime is 23497399567. The reversal of 23497399513 is 31599379432.

It is a happy number.

It is not a de Polignac number, because 23497399513 - 2¹ = 23497399511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23497399511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4013038 + ... + 4018888.

It is an arithmetic number, because the mean of its divisors is an integer number (1687248640).

Almost surely, 2^23497399513 is an apocalyptic number.

It is an amenable number.

23497399513 is a deficient number, since it is larger than the sum of its proper divisors (3498578727).

23497399513 is a wasteful number, since it uses less digits than its factorization.

23497399513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788.

The product of its digits is 5511240, while the sum is 55.

The spelling of 23497399513 in words is "twenty-three billion, four hundred ninety-seven million, three hundred ninety-nine thousand, five hundred thirteen".